256966190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{383}}^1\times {\mathrm{397}}^1$

素因数の和:813

約数の個数: 48

約数和(自身を含む): 503428608

約数和(自身を除く): 246462418

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 383, 397, 766, 794, 845, 1690, 1915, 1985, 3830, 3970, 4979, 5161, 9958, 10322, 24895, 25805, 49790, 51610, 64727, 67093, 129454, 134186, 152051, 304102, 323635, 335465, 647270, 670930, 760255, 1520510, 1976663, 3953326, 9883315, 19766630, 25696619, 51393238, 128483095, 256966190]

約数ペア:

[(1, 256966190), (2, 128483095), (5, 51393238), (10, 25696619), (13, 19766630), (26, 9883315), (65, 3953326), (130, 1976663), (169, 1520510), (338, 760255), (383, 670930), (397, 647270), (766, 335465), (794, 323635), (845, 304102), (1690, 152051), (1915, 134186), (1985, 129454), (3830, 67093), (3970, 64727), (4979, 51610), (5161, 49790), (9958, 25805), (10322, 24895)]